SOLAR SYSTEM

Detailed explanation-1: -Although the core and mantle are about equal in thickness, the core actually forms only 15 percent of the Earth’s volume, whereas the mantle occupies 84 percent.

Detailed explanation-2: -The Mantle It is the largest layer of the Earth, 1800 miles thick. The mantle is composed of very hot, dense rock.

Detailed explanation-3: -With a radius of almost 2, 200 miles, Earth’s core is about the size of Mars. It consists mostly of iron and nickel, and contains about about one-third of Earth’s mass.

Detailed explanation-4: -Mercury’s core occupies 85% of the planet’s radius, making it the largest core relative to the size of the planet in the Solar System; this indicates that much of Mercury’s surface may have been lost early in the Solar System’s history.

Detailed explanation-5: -The earth is made up of three different layers: the crust, the mantle and the core. This is the outside layer of the earth and is made of solid rock, mostly basalt and granite. There are two types of crust; oceanic and continental. Oceanic crust is denser and thinner and mainly composed of basalt.